Company lists · Data refreshed September 2026

Top 25 Office building investment platforms worldwide

Name: Office building investment platforms worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 29, 2026 17,361 companies tracked

RevenueBase identified 17,361 office building investment platforms worldwide as of September 2026 and tracks 311,873 professional contacts across them, including 109,304 with verified work emails. The United States is the largest market and London the largest hub.

This list covers office building investment platforms worldwide, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 29, 2026. Country and city lists for office building investment platforms follow the table.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 29, 2026 86% judged on-target in blind review

17,361Companies

311,873Contacts tracked

109,304Verified emails

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The 25 largest office building investment platforms worldwide

Ranked by team size

Top 25 of 17,361 office building investment platforms worldwide, ranked by team size, largest first. Data refreshed Sep 29, 2026. RevenueBase Smart Search rates how each company's information relates to office building investment platforms: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	JLL	Partial evidence	Chicago, IL, United StatesHQ checked Sep 29, 2026	10001+	76,504 contacts →
	Partial evidence “JLL (Jones Lang LaSalle Incorporated) is a leading global commercial real estate services and investment management company.” Source: RevenueBase Database · checked Sep 29, 2026
2	Newmark	Indirect evidence	New York, NY, United StatesHQ checked Sep 29, 2026	5,001-10,000	6,555 contacts →
	Indirect evidence “Newmark Group, Inc.(Nasdaq: NMRK), together with its subsidiaries (“Newmark”), is a world leading commercial real estate advisor and service provider to large institutional…” Source: RevenueBase Database · checked Sep 29, 2026
3	Brookfield Properties	Partial evidence	New York, NY, United StatesHQ checked Sep 29, 2026	5,001-10,000	4,785 contacts →
	Partial evidence “Brookfield Properties is now BGRE, reflecting the next chapter of our global real estate platform.” Source: RevenueBase Database · checked Sep 29, 2026
4	International Workplace Group PLC	Indirect evidence	Zug, SwitzerlandHQ checked Sep 29, 2026	10001+	4,031 contacts →
	Indirect evidence “IWG is the global leader in hybrid work solutions, helping organisations create more flexible, productive and sustainable ways of working.” Source: RevenueBase Database · checked Sep 29, 2026
5	Marcus & Millichap	Indirect evidence	Calabasas, CA, United StatesHQ checked Sep 29, 2026	1,001-5,000	3,787 contacts →
	Indirect evidence “Marcus & Millichap was founded in 1971 with the goal of being a new kind of company – one driven by long-term relationships and built on a culture of collaboration.” Source: RevenueBase Database · checked Sep 29, 2026
6	Transwestern	Partial evidence	Houston, TX, United StatesHQ checked Sep 29, 2026	1,001-5,000	2,718 contacts →
	Partial evidence “Transwestern is a vertically integrated commercial real estate firm dedicated to serving investors, partners and clients through expertise in investment, development, brokerage…” Source: RevenueBase Database · checked Sep 29, 2026
7	Lincoln Property Company	Partial evidence	Dallas, TX, United StatesHQ checked Sep 29, 2026	1,001-5,000	2,234 contacts →
	Partial evidence “Lincoln Property Company (“Lincoln”) is one of the largest diversified real estate services companies with 35 offices across the United States the United Kingdom and Europe.” Source: RevenueBase Database · checked Sep 29, 2026
8	Tishman Speyer	Partial evidence	New York, NY, United StatesHQ checked Sep 29, 2026	1,001-5,000	1,911 contacts →
	Partial evidence “As a diversified developer, operator, and investment manager of top-tier real estate across the US, Europe, Asia and South America, Tishman Speyer creates vibrant destinations and…” Source: RevenueBase Database · checked Sep 29, 2026
9	Oxford Properties Group	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 29, 2026	1,001-5,000	1,690 contacts →
	Indirect evidence “We are a leading global real estate investor, developer and manager.” Source: RevenueBase Database · checked Sep 29, 2026
10	Mapletree	Partial evidence	SingaporeHQ checked Sep 29, 2026	1,001-5,000	1,672 contacts →
	Partial evidence “Headquartered in Singapore, Mapletree is a global real estate development, investment, capital and property management company committed to sustainability.” Source: RevenueBase Database · checked Sep 29, 2026
11	Cadillac Fairview	Partial evidence	Toronto, ON, CanadaHQ checked Sep 29, 2026	1,001-5,000	1,497 contacts →
	Partial evidence “Cadillac Fairview is one of the largest owners, operators, investors and developers of best-in-class office, retail, multi-family residential, industrial and mixed-use properties…” Source: RevenueBase Database · checked Sep 29, 2026
12	Quadreal Property Group	Partial evidence	Vancouver, BC, CanadaHQ checked Sep 29, 2026	1,001-5,000	1,447 contacts →
	Partial evidence “In 2026, QuadReal Property Group marks 10 years as a global real estate investment, development and operating company-a decade built on long-term thinking, disciplined…” Source: RevenueBase Database · checked Sep 29, 2026
13	NEW Western	Partial evidence	Irving, TX, United StatesHQ checked Sep 29, 2026	201-500	1,320 contacts →
	Partial evidence “New Western is the nation’s largest private marketplace for investment real estate, built to make real estate investing more accessible while helping solve one of the biggest…” Source: RevenueBase Database · checked Sep 29, 2026
14	BGO	Partial evidence	New York, NY, United StatesHQ checked Sep 29, 2026	1,001-5,000	1,252 contacts →
	Partial evidence “BGO is a leading, global real estate investment management advisor, real estate lender, and a globally-recognized provider of real estate services.” Source: RevenueBase Database · checked Sep 29, 2026
15	Hongkong Land Limited	Partial evidence	Central, Hong KongHQ checked Sep 29, 2026	1,001-5,000	1,211 contacts →
	Partial evidence “Hongkong Land is a major listed property development, investment and management group.” Source: RevenueBase Database · checked Sep 29, 2026
16	Sonae Sierra	Indirect evidence	Lisbon, PortugalHQ checked Sep 29, 2026	1,001-5,000	920 contacts →
	Indirect evidence “About Sonae Sierra We pursue an integrated approach to real estate.” Source: RevenueBase Database · checked Sep 29, 2026
17	HFF	Indirect evidence	Dallas, TX, United StatesHQ checked Sep 29, 2026	1,001-5,000	904 contacts →
	Indirect evidence “HFF has been acquired by JLL.” Source: RevenueBase Database · checked Sep 29, 2026
18	Vornado Realty Trust	Partial evidence	New York, NY, United StatesHQ checked Sep 29, 2026	1,001-5,000	794 contacts →
	Partial evidence “Vornado Realty Trust is a preeminent owner, manager and developer of office and retail assets.” Source: RevenueBase Database · checked Sep 29, 2026
19	Amherst	Strong evidence	Austin, TX, United StatesHQ checked Sep 29, 2026	1,001-5,000	756 contacts →
	Strong evidence “The Amherst Group ("Amherst") is a diversified data-driven investment management platform at the crossroads of global capital markets and U.S.” Source: RevenueBase Database · checked Sep 29, 2026
20	SL Green Realty Corp	Strong evidence	New York, NY, United StatesHQ checked Sep 29, 2026	501-1,000	752 contacts →
	Strong evidence “SL Green Realty Corp, Manhattan's largest office landlord, is a fully integrated real estate investment trust, or REIT, that is focused primarily on acquiring, managing and…” Source: RevenueBase Database · checked Sep 29, 2026
21	GWL Realty Advisors	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 29, 2026	501-1,000	725 contacts →
	Indirect evidence “Brokerage in BC, AB, ON, QC, NS \| GWL Realty Advisors Inc.” Source: RevenueBase Database · checked Sep 29, 2026
22	Starwood Capital Group	Partial evidence	United StatesHQ checked Sep 29, 2026	1,001-5,000	710 contacts →
	Partial evidence “Starwood Capital Group is a private investment firm with a primary focus on global real estate.” Source: RevenueBase Database · checked Sep 29, 2026
23	Growthpoint Properties	Indirect evidence	Sandton, South AfricaHQ checked Sep 29, 2026	501-1,000	669 contacts →
	Indirect evidence “Growthpoint is the largest South African primary listed REIT and a leading international property company.” Source: RevenueBase Database · checked Sep 29, 2026
24	JBG Smith	Indirect evidence	Bethesda, MD, United StatesHQ checked Sep 29, 2026	501-1,000	659 contacts →
	Indirect evidence “JBG SMITH is the largest, publicly traded, pure-play real estate company focused on the Washington, DC market.” Source: RevenueBase Database · checked Sep 29, 2026
25	Revantage, A Blackstone Portfolio Company	Partial evidence	Chicago, IL, United StatesHQ checked Sep 29, 2026	501-1,000	621 contacts →
	Partial evidence “A global corporate services leader proudly serving Blackstone Real Estate portfolio companies and investments.” Source: RevenueBase Database · checked Sep 29, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: office building investment platforms. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names office building investment platforms.
Partial evidence: Its own public description names part of office building investment platforms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name office building investment platforms. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 17,361 office building investment platforms worldwide

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Office building investment platforms worldwide at a glance

As of Sep 29, 2026

35.0%Verified-email coverage

18.0Average contacts per company

1-10Median size (employees)

3.2%Largest-city concentration · London

Sep 29, 2026Page data refreshed

Companies by employee count

1-10

9,965

11-50

5,106

51-200

1,538

201-500

402

501-1,000

127

1,001-5,000

119

5,001-10,000

10001+

Email recency is reported on each country list linked below.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among office building investment platforms, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
Coverage: Every country. Country and city lists for office building investment platforms are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “office building investment platforms”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search: RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names office building investment platforms), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude: Companies whose own description does not clearly place them among office building investment platforms, and records with no verified work email.
Match quality: In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
Ranking: Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification: Every listed company carries at least one verified work email, 109,304 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh: This page's figures were pulled from the company graph on September 29, 2026. Lists refresh periodically as the graph is re-checked.
Corrections: Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Office building investment platforms by location

113 lists · largest first

Every Office building investment platforms list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

Cities

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names office building investment platforms, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many office building investment platforms are there worldwide?

RevenueBase identified 17,361 office building investment platforms worldwide as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

JLL, headquartered in Chicago, tops this list with the largest team on record.

Which country has the most office building investment platforms?

The United States leads with 5,582 companies, followed by the United Kingdom (1,020) and India (982). Every office building investment platforms list by country and city is linked on this page.

Which city has the most office building investment platforms?

London leads with 554 headquartered companies, followed by New York (548) and Dubai (297).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 109,304 verified decision-maker contacts tracked across these 17,361 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 29, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase Smart Search, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.